Title :
Joint quantizer optimization for scalable coding
Author :
Koziri, Maria ; Eleftheriadis, Alex
Author_Institution :
Dept. of Comput. & Commun. Eng., Univ. of Thessaly, Volos, Greece
Abstract :
Scalability is an attractive solution to the problems posed by modern multimedia transmission systems. The key for better performance in scalable coding is joint rate distortion optimization. We present a new stochastic model for scalable coding which models the dependencies among layers, and we derive an optimal joint quantizer selection scheme for memoryless Gaussian sources. Simulation results verify the validity of the theoretical analysis.
Keywords :
Gaussian processes; multimedia communication; optimisation; quantisation (signal); video coding; joint quantizer optimization; joint rate distortion optimization; memoryless Gaussian sources; multimedia transmission system; optimal joint quantizer selection scheme; scalable coding; Encoding; Image coding; Joints; Low pass filters; Optimization; Quantization; Rate-distortion; Quantization; Rate distortion theory; Source coding;
Conference_Titel :
Image Processing (ICIP), 2010 17th IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-7992-4
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2010.5653282
